<template>
  <transition name="todo" appear>
    <li>
      <label>
        <input
          type="checkbox"
          :checked="todoObj.done"
          @change="handleCheck(todoObj.id)"
        />
        <span v-show="!todoObj.isEdit">{{ todoObj.name }}</span>
        <input
          type="text"
          :value="todoObj.name"
          v-show="todoObj.isEdit"
          @blur="handleBlur(todoObj, $event)"
          ref="inputTitle"
        />
      </label>
      <button class="btn btn-danger" @click="handleDelete(todoObj.id)">
        删除
      </button>
      <button class="btn btn-edit" @click="handleUpdate(todoObj)">编辑</button>
    </li>
  </transition>
</template>

<script>
export default {
  name: "MyItem",
  props: ["todoObj"],
  methods: {
    handleCheck(id) {
      // this.checkDone(id)
      this.$bus.$emit("checkDone", id);
    },
    handleDelete(id) {
      if (confirm("确定删除吗")) {
        // this.deleteObj(id)
        this.$bus.$emit("deleteObj", id);
      }
    },
    handleUpdate(todoObj) {
      if (todoObj.hasOwnProperty("isEdit")) {
        todoObj.isEdit = "true";
      } else {
        this.$set(todoObj, "isEdit", true);
      }
      this.$nextTick(function () {
        this.$refs.inputTitle.focus();
      });
    },
    handleBlur(todoObj, event) {
      todoObj.isEdit = false;
      if (!event.target.value.trim()) {
        alert("不能输入空字符");
        return;
      }
      todoObj.isEdit = false;
      console.log(event.target.value);
      this.$bus.$emit("updateObj", todoObj.id, event.target.value);
    },
  },
};
</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}

li:hover {
  background-color: aqua;
}

li:hover button {
  display: block;
}

 .todo-enter-active{
  animation: atguigu 0.5s linear;
 }

 .todo-leave-active{
  animation: atguigu 0.5s linear reverse;
 }

@keyframes atguigu {
  
  from{
    transform: translate(100%);
  }

  to{
    transform: translate(0);
  }
}
</style>
